High dynamic synchronization algorithm based on cyclic spectral density
GAO Yu-long1,2, CHEN Yan-ping3, WANG Qi2, SHA Xue-jun1, ZHANG Zhong-zhao1
1.Communication Research Center,Harbin Institute of Technology,Harbin 150080,China;2.Photoelectricity Research Institute,Harbin Institute of Technology,Harbin 150080,China;3.College of Computer Science and Technology,Harbin Engineering University,150001 Harbin,China
Abstract:
A new high dynamic synchronization algorithm using cyclic spectral density was presented according to the theories of cyclic spectral density and its anti-interface and anti-noise properties.The closed forms of frequency error and phase error were obtained,and their performances were analyzed.The in-phase signal throw costas loop was normalized to obtain a cosine signal.Cyclic spectral density of the cosine signal of was computed to obtain the frequency error and the phase error and then results were put into NCO to synchronize.Finally,the performance of the presented algorithms was compared with the conventional algorithms by virtue of simulations,and the simulation results proved the correctness and the superiority of the new algorithms.
Key words: cyclic spectral density frequency-locked phase-locked loop high dynamic synchronization strip spectral correlation
DOI:10.11916/j.issn.1005-9113.2011.03.023
Clc Number:TP301.6
Fund:
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High dynamic synchronization algorithm based on cyclic spectral density
本站小编 哈尔滨工业大学/2019-10-23
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